<!--
 * @Author: jswang
 * @Date: 2021-08-16 15:33:03
 * @LastEditTime: 2021-08-24 10:10:39
-->
<template>
<!-- 工作日历 -->
  <div>
    <!-- 年和月 -->
    <el-row type="flex" justify="end">
      <el-select size="small" style="width:120px" v-model="currentYear" @change="dateChange">
        <el-option v-for="item in yearList" :label="item" :key="item" :value="item"></el-option>
      </el-select>
      <el-select size="small" style="width:120px; margin-left: 10px" v-model="currentMonth" @change="dateChange">
        <el-option v-for="item in 12" :label="item" :key="item" :value="item"></el-option>
      </el-select>
    </el-row>
    <!-- 放置一个日历组件 -->
    <el-calendar v-model="currentDate">
      <!-- 设置要显示的内容 -->
      <!-- <template slot="dateCell" slot-scope="{date,data}"> -->
      <template v-slot:dateCell="{date,data}">
        <div class="date-content">
          <span class="text">{{data.day | getDay}}</span>
          <span v-if="isWeek(date)" class="rest">休</span>
        </div>
      </template>
    </el-calendar>
  </div>
</template>

<script>
export default {
  props:{
    startDate:{
      type:Date,
      //需要一个回调函数的返回值  因为这里是一个 对象 / 数组
      default:()=>new Date() //如果没有传递当前 startDate 就可以取当前时间
    }
  },
  data(){
    return{
      yearList:[], //要遍历的年的数组
      currentYear:null, //当前年
      currentMonth:null, //当前月
      currentDate:null  //当前时间
    }
  },
  created(){
    //获取当前的年 月
    this.currentYear = this.startDate.getFullYear()
    this.currentMonth = this.startDate.getMonth() + 1
    //快速生成数组的方法
    this.yearList = Array.from(Array(11),(v,i)=>this.currentYear +i -5)
    //元素创建完毕就调用
    this.dateChange()
  },
  //过滤器
  filters:{
    getDay(value){
      const day = value.split('-')[2]
      return day.startsWith('0') ? day.substr(1):day
    }
  },
  methods:{
    dateChange(){
      //生成新的日期
      this.currentDate = new Date(`${this.currentYear}-${this.currentMonth}-1`)  //以1号位开始
    },
    isWeek(date){
      //getDay() 获取具体的某一天  周日 返回的是 0
      return date.getDay() === 6 || date.getDay() === 0 
    }
  }
}
</script>
<style  scoped>
  /deep/ .el-calendar-day {
  height:  auto;
 }
 /deep/ .el-calendar-table__row td,/deep/ .el-calendar-table tr td:first-child,  /deep/ .el-calendar-table__row td.prev{
  border:none;
 }
.date-content {
  height: 40px;
  text-align: center;
  line-height: 40px;
  font-size: 14px;
}
.date-content .rest {
  color: #fff;
  border-radius: 50%;
  background: rgb(250, 124, 77);
  width: 20px;
  height: 20px;
  line-height: 20px;
  display: inline-block;
  font-size: 12px;
  margin-left: 10px;
}
.date-content .text{
  width: 20px;
  height: 20px;
  line-height: 20px;
 display: inline-block;

}
 /deep/ .el-calendar-table td.is-selected .text{
   background: #409eff;
   color: #fff;
   border-radius: 50%;
 }
 /deep/ .el-calendar__header {
   display: none
 }
</style>
